Dr. Warren T. Vaughan has made an excellent contribution to the dissemination of our knowledge of allergy in his medical book on the subject. This volume, which is the second in a series published under the auspices of the American Association for the Advancement of Science, reflects the information primarily for a public audience and indicates the author's great competence in writing for such a group. The illustrations, the case reports, which are more like anecdotes than case reports, and the information reflected are all just about what such a contribution should be. The book is one which may be safely recommended by any physician to an intelligent patient with allergy who wants to know what the medical profession knows about this subject.